... : Untreated,Painting or Hot dip Galvanizing. Widly used on construction project,oil project,seaport,power plant,water plant, defense project,chemical ... leaving factory,it has undergone corrosion prevention treatment of hot-dip galvanizing;therefore,it has strong capability in ... be hoisted for installation.Prevent dirty objects accumulation:rain water,ice snow and dust.Material:Mild Steel (Low Carbon ...